# HIIToMeter high intensity interval training meter vs Restrr

The clearest difference is rating: HIIToMeter high intensity interval training meter at 5.0 against Restrr's 3.0. HIIToMeter high intensity interval training meter also leads on in-app purchases (none vs 3) and update cadence (every 5 days vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Restrr sells 3 in-app purchases, starting at $1.99 per month. HIIToMeter high intensity interval training meter asks for nothing beyond the download.

HIIToMeter high intensity interval training meter holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

HIIToMeter high intensity interval training meter ships an update every 5 days, Restrr every 3 months. The most recent releases landed on October 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | HIIToMeter high intensity interval training meter | Restrr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hiitometer-high-intensity-interval-training-meter/id1255714847/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/restrr-gym-rest-timer/id6478751420/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 26 MB | 19 MB |
| Requires iOS | **10.0** | 18.5 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shrujan Hanumantharayappa](https://appshunter.io/developer/1255714846) | [Matija Gunther](https://appshunter.io/developer/1733805006) |

## What reviewers say

### HIIToMeter high intensity interval training meter

[App page](https://appshunter.io/ios/app/hiitometer-high-intensity-interval-training-meter/id1255714847)

This app provides a visual guide for high-intensity interval training, helping users maximize fat burning and metabolism. It offers customizable workout durations and intensities, with Apple Health integration for heart rate data and Apple Watch support for real-time feedback.

**Highlights:** Visual progress tracking for HIIT, Customizable workout durations (10, 20, 30 mins), Adjustable intensity levels (low, medium, high), Apple Health integration for heart rate, Apple Watch companion app support, Haptic feedback for intensity changes

**Features:** Apple Watch app

**In-app purchases:** none


### Restrr

[App page](https://appshunter.io/ios/app/restrr-gym-rest-timer/id6478751420)

Optimize your strength training and HIIT workouts with a smart rest countdown and automatic set counter. Stay focused with customizable notifications and live activity integration. Train more efficiently and effectively.

**Highlights:** Smart rest countdown, Automatic set counter, Live Activities & Dynamic Island integration, Customizable notifications, Workout optimization

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $8.99 | per year |
| Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is HIIToMeter high intensity interval training meter free?

HIIToMeter high intensity interval training meter is free to download, with no in-app purchases.

### Is Restrr free?

Restrr is free to download, with in-app purchases available.

### Which has better reviews, HIIToMeter high intensity interval training meter or Restrr?

HIIToMeter high intensity interval training meter is rated higher. HIIToMeter high intensity interval training meter averages 5.0 out of 5 from 1 ratings, while Restrr averages 3.0 from 2 ratings.

### Do HIIToMeter high intensity interval training meter or Restrr have ads?

Neither HIIToMeter high intensity interval training meter nor Restrr shows ads.

### Which is updated more often, HIIToMeter high intensity interval training meter or Restrr?

HIIToMeter high intensity interval training meter ships an update every 5 days, and Restrr every 3 months. Most recently, HIIToMeter high intensity interval training meter was updated on October 1, 2026 and Restrr on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*